How to Tell If Squirrels Are Nesting in Your Attic

As the weather cools in Massachusetts, squirrels often look for warm, sheltered places to build their nests. Unfortunately, attics make the perfect spot. While squirrels may seem harmless, they can cause significant damage to insulation, wiring, and wood — not to mention the noise disturbances they bring. If you suspect you have squirrels in your attic, here’s how to recognize the signs and what you should do next.

Signs of Squirrels Nesting in Your Attic

1.Scratching and Scurrying Sounds – Squirrels are active during the day, especially early morning and late afternoon. If you hear scratching, rolling, or scurrying sounds above your ceiling during these times, squirrels may be the culprits.
2. Droppings and Nesting Materials – Look for squirrel droppings or chewed-up materials such as leaves, twigs, or shredded insulation. Squirrels often bring natural materials inside to create nests for their young.
3. Chewed Wires and Wood – Squirrels have strong teeth and need to chew constantly. This can result in gnawed wires (a fire hazard), chewed wood beams, or damage to stored belongings.
4. Entry Points Around the Roofline – Check your roofline, soffits, and vents for holes or gaps. Squirrels are skilled climbers and can squeeze through openings as small as a baseball.
5. Unpleasant Odors – If squirrels nest long-term, droppings and urine can create unpleasant odors that seep into living spaces.

Why You Shouldn’t Handle Squirrels on Your Own

While it may be tempting to try DIY methods, handling squirrels improperly can harm both the animals and your home. Many store-bought traps or poisons are unsafe, inhumane, and may even be illegal in Massachusetts without proper permits. Additionally, separating a mother squirrel from her babies can create a bigger problem.